Area Of Interest (Aoi) - Basler A500k User Manual

Basic Operation and Features

3.10 Area of Interest (AOI)

The area of interest feature allows you to specify a portion of the CMOS array and during
operation, only the pixel information from the specified portion is transferred out of the camera.
The size of the area of interest is defined by declaring a starting column, a width in columns, a
starting line and a height in lines.
Starting columns can only be chosen in multiples of 10 + 1 due to the way the data is output of the
sensor (see Figure 3-1).
Widths can only be chosen in multiples of 10 (A504
is output of the sensor.
For example (applicable to A504
width in columns as 20, the starting line as 8 and the height in lines as 10. As shown in Figure 3-
28, the camera will only transmit pixel data from within the defined area.
Information from the pixels outside of the area of interest is discarded.
Due to the video output, starting columns can only be selected in multiples of 10 + 1, i.e. only columns 1, 11, 21
and so on can be selected.
Figure 3-28: Area of Interest (Example for A504
3-38
PRELIMINARY
, A501 ), suppose that you specify the starting column as 11, the
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, A501 ) or 40 (A503 ) due to the way the data
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Basler A500